Unanswered: KeyMap doesn't like body in Firefox?

I have a full-page application that I'm working on and I wanted to add a couple keyboard shortcuts to navigate pages back and forth. I added a KeyMap to the body and it works great in IE and Chrome, working anywhere you click and executing my functions. But in Firefox I have to literally CLICK on a toolbar header that I implemented to get it to recognize my keyboard shortcuts. If I click anywhere else and lose focus, Firefox doesn't recognize my shortcut. Has anybody else ran into this issue?